Hi, I believe I came across a typo in the time.h header file: --- include/time.h +++ /include/time.h @@ -82,8 +82,8 @@ #define CLOCK_PROCESS_CPUTIME_ID 2 #define CLOCK_THREAD_CPUTIME_ID 3 #define CLOCK_MONOTONIC_RAW 4 -#define CLOCK_REALTIME_COURSE 5 -#define CLOCK_MONOTONIC_COURSE 6 +#define CLOCK_REALTIME_COARSE 5 +#define CLOCK_MONOTONIC_COARSE 6 #define CLOCK_BOOTTIME 7 #define CLOCK_REALTIME_ALARM 8 #define CLOCK_BOOTTIME_ALARM 9 Regards Paul